VolumeBulletin of the Bureau of Standards, Vol. 11, 359-420 (1915) Scientific Paper 234 (S234)
Methods of measuring very high resistances are discussed, diagrams being given showing how they may be applied to the measurement of volume resistivity and surface resistivity. The volume resistivities of more than 60 materials are tabulated. The effects of humidity of the air, temperature, and the magnitude and time of application of the impressed voltage, are discussed. The surface resistivity is shown to be due to a surface film, usually of water or oil, on the insulator. This is generally the important factor in determining the leakage between two conductors insulated by a solid dielectric. However, for insulators having a volume resistivity less than 10/sup 14/ ohms-cm. and placed%
CameraCanon EOS 5D Mark II
OcrABBYY FineReader 8.0
Possible copyright statusThe Bulletin of the Bureau of Standards is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. However, please pay special attention to the individual works to make sure there are no copyright restrictions indicated. Individual works may require securing other permissions from the original copyright holder.